Subsoiler.



J. M. AYDLOTT.

SUBSOILBR.

APPLICATION FILED 110117, 1913.

Patented Mar. 24, 191i ink " ITED 1 STATES PATENT OFFICE.

JAMES M. AYn o'rr, or nAvENNA, TEXAS, ASSIGNOIR- or ONE-HALF To w. A;HANKS,

Y or IVALNHOE, Texas.

SUBSOILER.

, Specification of Letters fatent.

Patented Mar. 24,1914.

imam-med November 1 7, 1913. Serial No. 801,420.

To all whom'z't may concern:

Be it known that'l, JAMES M. AYDLorT,

a citizen of the United, States, residing at Ravenna, in the county ofFannin and State -of Texas, have invented new and useful Im provementsin. Subsoilers, of which the fol lowing is a specification. 1

Thisinvention relates to-certain new and useful improvements insubsoilers and the primary object thereof isto provide asubso-iler whichhas a plurality of pivoted pointspwhich will merely loosen-the under Inthe drawings: Figure 1 is a side elevation of the invention; Fig. 2 is atop plan view; Fig. 3 is an enlarged perspective view of oneofthepoints; and F ig; 4 is'a frag mentary sectional view of the drumshowing the manner in which the points are connected thereto.

In proceeding in accordance with this invention, a frame 1 is employed,which has I the eccentric ends 2 of an axle 3 journaled thereon, theends 2 having traction wheels 4 rotatably mounted thereon. Gear wheels 5are rigidly mounted on the eccentric axle ends 2 and mesh with smallergear wheels 6 which latter are rigidly mounted on stubshafts 7 that arerotatably connected to the frame I in any suitable manner. Ratchetwheels 8 are also rigidly mounted on the stub-shafts 7. and are rotatedby engagement with spring pressed detents 9 that are carried by the handoperated levers 10: The levers 10 are bifurcated at their lower ends andreceive the ratchet wheels in their furcations and are pivotally mountedon the stub shafts 7. Rods 11 are connected to the detents 9 and tocurved levers 12, pivoted to the levers 12 so as toenable the detents tobe moved out of' engagement with the teeth of the ratchet wheels 8..Stops 13 are secured to the frame 1 and engage the levers 10 to limitthe upward throw of. the levers.

The drum 14 is rotatably mounted on the axle 3 andhas series oftransverse rows of ment about the pins. In order to regulate the extentof arc-like movements of the points," adjustable stops 20 are provided,which stops are slotted at 22. and provided with screws 21 wh'ioh extendthrough the slots 22 and into the base plates 17-. The

points are provided with opposite shoulders 20- which engage the extremeinner edgesv of .-tl1e curvedends-of the stops 20. The points-of therows are arranged in staggered relation to each other so as points 15are permitted suflicient movement about the drum as a pivot to leave theground without turning the under soil over. The drum is made very heavyso that it will, due to its weight, force the points into the ground asthe points successively engag'e the latter and is further arranged infront of the traction wheels 4. In Fig. 1, it

I will be noted that point a has gravitated to its down position andwill enter the ground at a slight angle thereto as indicated by point 6.It will then farther penetrate the ground at a lesser angle thereto asillustrated by a point 0, after which it will farther enter the grounduntil at (Z it leaves the ground at a very slight angle to the groundwhich angle is insuflicient to turn the under soil over, which is animportant feature. By means of the stops20, the points 15 may have theirmovements limited so as to enable the same to leave the ground, at aless or greater angle, as desired? By movement of the lever 10, theratchet wheel 8 may be rotated so. as to move the stub-shaft 7 andtherewith the gear-wheel 6, to thereby rotate the gear wheel 5 so as toraise or lower the axle 3, raising of the axle causing the points 15 tobe lifted up, free of the ground when it-is desired to turn the,machine, or otherwise move same from place to place, without operationof the points -15 \Vhat is claimed is:

1.'In combination with a drum, a series of'points pivoted to theperiphery thereof so as to have arc-like movement radially tomorethoroughly work the ground. 1

It is particularly to bexn'oted that the' of the drum, and adjustablemeans to enable the extent of movement of the points to be controlled.

2. In combination with a drum, a series attached thereto, spacedperforated ears on theplates, points pivoted between the ears, and apair of stops ad- 1 justably carried by each plate and arranged onopposite sides of the points to engage the 10 latter to thereby enablethe extent of arelike movement of the points to be controlled. I 3. Incombination with a drum, 2. series of base plates attached thereto,spaced perforated ears on the plates, points pivoted 15 between theears, a shoulder on each side of Witnesses .m

J. F. HENDRIX, W. A. HANKS.

M Copies of this latent may be obtained for five seats each, byaddressing the 'Gommissioner of Patents,

. t I Washington, D. C. Q i t

